Unbelievable Facts About Italy's Architecture 

The Colosseum 

It was originally built as an amphitheater and it could house 50,000 spectators.  

Leaning Tower of Pisa 

Originally commissioned as a bell tower back in 1173, there are many theories about why it leans to one side.  

St. Peter's Basilica 

Nowadays, St. Peter's Basilica is a tourist hotspot, with a reported six million visitors every year. 

Pantheon 

Commissioned by the Emperor Hadrian around 125 AD, this building still stands today.  

Sistine Chapel 

The Sistine Chapel is an amazing work of art and architecture 

Baptistery of Florence 

The building was originally a Roman temple, dedicated to Mars and built in the 2nd century AD.